<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Incremental absolute position reference</title>
    <style>
      #rect {
        position: absolute;
        border: 1px solid red;
        width: 40px;
        height: 40px;
        left: 100px;
      }
    </style>
  </head>
  <body>
    <div id="rect"></div>
  </body>
</html>
